/* gnu_getopt_long and getopt_long_only entry points for GNU getopt.
   Copyright (C) 1987,88,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.

   This file is part of the GNU C Library.  Its master source is NOT part of
   the C library, however.  The master source lives in /gd/gnu/lib.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/*
 * modified July 9, 1999 by mark gates <mgates@nlanr.net>
 *          Dec 17, 1999
 *
 * renamed all functions and variables by prepending "gnu_"
 * removed/redid a bunch of stuff under the assumption we're
 *   using a modern standard C compiler.
 * renamed file to gnu_getopt_long.c (from gnu_getopt1.c)
 *
 * $Id: gnu_getopt_long.c,v 1.1.1.1 2004/05/18 01:50:44 kgibbs Exp $
 */

#include "gnu_getopt.h"

#include <stdio.h>
#include <stdlib.h>

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

int gnu_getopt_long( int argc,
                     char *const *argv,
                     const char *options,
                     const struct option *long_options,
                     int *opt_index ) {
    return _gnu_getopt_internal (argc, argv, options, long_options, opt_index, 0);
} // end gnu_getopt_long

/* Like gnu_getopt_long, but '-' as well as '--' can indicate a long option.
   If an option that starts with '-' (not '--') doesn't match a long option,
   but does match a short option, it is parsed as a short option
   instead.  */
int gnu_getopt_long_only( int argc,
                          char *const *argv,
                          const char *options,
                          const struct option *long_options,
                          int *opt_index ) {
    return _gnu_getopt_internal (argc, argv, options, long_options, opt_index, 1);
} // end gnu_getopt_long_only

#ifdef __cplusplus
} /* end extern "C" */
#endif /* __cplusplus */

#ifdef TEST
#include <stdio.h>

int main (argc, argv)
int argc;
char **argv;
{
    int c;
    int digit_optind = 0;

    while ( 1 ) {
        int this_option_optind = gnu_optind ? gnu_optind : 1;
        int option_index = 0;
        static struct option long_options[] =
        {
            {"add", 1, 0, 0},
            {"append", 0, 0, 0},
            {"delete", 1, 0, 0},
            {"verbose", 0, 0, 0},
            {"create", 0, 0, 0},
            {"file", 1, 0, 0},
            {0, 0, 0, 0}
        };

        c = gnu_getopt_long (argc, argv, "abc:d:0123456789",
                             long_options, &option_index);
        if ( c == -1 )
            break;

        switch ( c ) {
            case 0:
                fprintf ( stderr, "option %s", long_options[option_index].name);
                if ( gnu_optarg )
                    fprintf ( stderr, " with arg %s", gnu_optarg);
                fprintf ( stderr, "\r\n");
                break;

            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                if ( digit_optind != 0 && digit_optind != this_option_optind )
                    fprintf ( stderr, "digits occur in two different argv-elements.\r\n");
                digit_optind = this_option_optind;
                fprintf ( stderr, "option %c\r\n", c);
                break;

            case 'a':
                fprintf ( stderr, "option a\r\n");
                break;

            case 'b':
                fprintf ( stderr, "option b\r\n");
                break;

            case 'c':
                fprintf ( stderr, "option c with value `%s'\r\n", gnu_optarg);
                break;

            case 'd':
                fprintf ( stderr, "option d with value `%s'\r\n", gnu_optarg);
                break;

            case '?':
                break;

            default:
                fprintf ( stderr, "?? gnu_getopt returned character code 0%o ??\r\n", c);
        }
    }

    if ( gnu_optind < argc ) {
        fprintf ( stderr, "non-option ARGV-elements: ");
        while ( gnu_optind < argc )
            fprintf ( stderr, "%s ", argv[gnu_optind++]);
        fprintf ( stderr, "\r\n");
    }

    exit (0);
} // end main
#endif /* TEST */
